package unit;

public class MyMath {
    public int add(int a, int b) {
        return a + b;
    }

    public int jian(int a, int b) {
        return a - b;
    }

    public int sheng(int a, int b) {
        return a * b;
    }

    public int chu(int a, int b) {
        return a / b;
    }
}
